{
  "id": "1505.00798",
  "version": "v1",
  "published": "2015-05-04T20:12:26.000Z",
  "updated": "2015-05-04T20:12:26.000Z",
  "title": "The Evolution of the Far-UV Luminosity Function and Star Formation Rate Density of the Chandra Deep Field South from z=0.2-1.2 with Swift/UVOT",
  "authors": [
    "Lea M. Z. Hagen",
    "Erik A. Hoversten",
    "Caryl Gronwall",
    "Christopher Wolf",
    "Michael H. Siegel",
    "Mathew Page",
    "Alex Hagen"
  ],
  "comment": "20 pages, 8 figures, 6 tables; accepted for publication in ApJ",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We use deep Swift UV/Optical Telescope (UVOT) near-ultraviolet (1600A to 4000A) imaging of the Chandra Deep Field South to measure the rest-frame far-UV (FUV; 1500A) luminosity function (LF) in four redshift bins between z=0.2 and 1.2. Our sample includes 730 galaxies with u < 24.1 mag. We use two methods to construct and fit the LFs: the traditional V_max method with bootstrap errors and a maximum likelihood estimator. We observe luminosity evolution such that M* fades by ~2 magnitudes from z~1 to z~0.3 implying that star formation activity was substantially higher at z~1 than today. We integrate our LFs to determine the FUV luminosity densities and star formation rate densities from z=0.2 to 1.2. We find evolution consistent with an increase proportional to (1+z)^1.9 out to z~1. Our luminosity densities and star formation rates are consistent with those found in the literature, but are, on average, a factor of ~2 higher than previous FUV measurements. In addition, we combine our UVOT data with the MUSYC survey to model the galaxies' ultraviolet-to-infrared spectral energy distributions and estimate the rest-frame FUV attenuation. We find that accounting for the attenuation increases the star formation rate densities by ~1 dex across all four redshift bins.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-05-04T20:12:26.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "star formation rate density",
      "chandra deep field south",
      "far-uv luminosity function"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 20,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}